Half to hoopes bro



(No Model.)

R. HOOPES. MACHINE EUR TRIMMING WHEEL RIMS.

Patented Oct. 25E, 1892.

UNITED i STATES PATENT OFFICE.

RUSSELL I-IOOPES, OF WEST CHESTER, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO HOOPES BRO. & DARLINGTON, OF SAME PLACE.

MACHINE FORTRIMMING WHEEL-RIMS.

SPECIFICATION forming part of Letters Patent No. 485,156, dated October 25, 1892.

Application ii'led April 27, 1892. Serial No. 430,905. (No model.)

To all whom it may concerne Be it known that I, RUSSELL HooPEs, a citizen of theUnited States, and a resident of West Chester, county of Chester, and State of Penn- Sylvania, have invented an Improvement in Machines for Trimming lVheel-Rims, of which the following is a specification.

My invention has reference to rim-planing machines; and it consists of certain improveio ments which are fully set forth in the following specification and are shown in the accompanying drawings, which form a part thereof.

The object of my invention Ls to so construct the machine that the sectional area and shape of the Wheel-rim shall be uniform throughout its entire length.`

In carrying out my invention I employ a pair of vertical cutter-heads adapted to plane the inner and outer curved surfaces of the wooden rim, a pair of horizontal cutter-heads having their cutting-edges arranged to make a space between the adjacent cutters of the two cutterheads, a feeding device to feed the wooden rim between the cutter-heads, and a guide at the point being dressed controlled by the wooden rim to move the horizontal cutter-heads whereby they may follow any variations in the curvature of the wooden rim.

It is immaterial to my invention what the details of construction of the machine maybe, as they may be greatly varied to suit the ideas of the designer.

Broadly considered, my invention comprehends two cutter-heads adapted to cut or plane opposite faces of a traveling strip of wood having curves or irregularities, coinbined with a guide controlled by one of the faces of the strip of wood to automatically shift the cutter-heads to insure the saine part of the cutters continually acting upon the wood. This is particularly useful when the cross-section 'of the finished wood is trapezoidal.

In the drawings, Figure 1 is a plan view of a machine embodying my improvements. Fig. la is a similar view of the driving-shaft and driving-belts. view on the line 1 2 of Fig. 1, showingthe 5o horizontal cutter-heads; and Fig. 3is a simi- Fig. 2 is avertical sectionall lar view on the line 3 4 of Fig. l, showing the vertical cutter-heads.

A is the table of the machine.

B B are vertical cutter-heads arranged above the table A and Separated a distance apart to 5 5 admit the strip of Wood or rimsections between them. These cutter-heads are carried on the shafts C C, jouinaled in suitable bearings c c on the frame. To permit an adjustment of the cutter-heads to and from each other, the 6o bearings c e of one cutter-shaft O may be carried by adjustable slotted plates d upon an extension A of the frame. (See Fig. 3.)

D D are guides carried by adjustable slotted plates e e upon the frame or table A and located, preferably, upon each side of the iiiner cutter-head B for guiding the wooden strip or rim section as it passes between the cutter-heads. Y

E E are the horizontal cutter-heads, be- 7o tween which the rim passes, locatedv in an opening in the table A and carried by horizontally-movable shafts F F, journaled in suitable bearings f f. These bearings may be carried by slotted plates g g upon the frame for the purpose of adjusting the shafts F F to and from one another. When the side faces of the wooden strip or section are to be cut upon a taper, so as to have a trapezoidal cross-section, the cutting-edges of the two 8o horizontal cutting-heads E E are arranged so as to make a trapezoidal space between them, as shown in Fig. 2.

G G are sleeves upon the shafts F F, connected together by a link H. To permit the adjustment of the shafts F F, this link may be provided with slots 7L h and connected with the sleeves G G by pins or screws z'. `The shafts F F are free to turn in the sleeves G G, but are held against longitudinal move- 9o ment therein by collars jj.

I is a rod carried by the link H and adapted to bear against the wooden strip or rim-section as it passes between the cutters E E.

.I is a spring acting upon the end of the rod I and tending to force it against the rirnsection.

K is a movable part guided in the bracket K and carrying a roller (shown in dotted lines in Fig. 2) which bears upon and guides zoo the rim-section after it has passed from the cutters E E.

la is a spring-pressed pin bearing upon the movable part K to hold its roller with a yielding pressure upon the ri m-section. The bracket K may be adjusted upon the table A by means of the slot and screws k.

L is a feeding-roller carried upon Vthe shaft M, located upon the table A and adapted to feed the rim between the cutting-heads B B and E E. This feeding-roller preferably consists of a cylinder having a toothed or roughened perimeter.

N is a sleeve in which the shaft M is journaled, pivoted to the arm n of the sleeve O, which is sleeved upon the shaft-P. The shaft M is connected by the toggle-joint m with the shaft Q, journaled in bearings n on the arm o of the sleeve O.

Q is a gear-wheel carried by the shaft Q.

O is a pinion on the shaft P, engaging with the gear-wheel Q of the shaft Q.

O2 is a driving-pulley upon the shaft P,

by which the shaft P is rotated through the i belt O3.

b is an adjustable stop carried by a bracket o upon the sleeve O and adapted to bear upon the stationary frame to limit the downward movement of the sleeve and its arms, thereby adjusting the vertical position of the feedingroller L.

R is a counter-shaft journaled in suitable bearings fr in the rear of the frame.

S is a driving-pulley upon the shaft R, by which the shaft is driven through the driving-belt s.

T T are respectively pulleys on the counter-shaft R, by which the shafts C C of the vertical cutting-heads B B are rotated through the belts t t', respectively.

U is a pulley on the counter-shaft R, by which the shaft Fof the lower horizontal cutter-head E is rotated through the belt u.

Vis a pulley on the counter-shaft R, by which the shaftFof the upper horizontal cutter-head E is rotated through the cross-belt fu and the pulley o on the shaft F.

X is the rim-section or wooden strip. Y

WV is a weight carried by a lever w, pivoted at one end to the main frame and connected by a link with the arm n of the sleeve O, so as to positively depress the arm and thus hold the feeding-roller L upon the wooden rim or strip X.

The belt O3 may be driven from apulley on any of the driving-shafts or from the pulley V on the counter-shaft R, or it maybe driven from a separate counter-shaft.

I shall now describe the operation of the machine. The end of the Wooden rim or strip X is placed under the roller L and is fed between the cutting-heads, passing irst between the vertical cuttingheads B B, by which the outer and inner faces are cut or planed, and then between the horizontal cutting-heads E E, by which the side faces are planed. The cutting-edges of these headsE E are arranged to form a tapered space between them, so as to cut a tapered side face upon the wooden strip. It is therefore necessary in order to trim or planethis face uniformly that the wooden strip or rim should occupy a uniform position with reference to these cutting-edges. If it should be permitted to move farther to one side or the other with reference to the cutting-edges, it is apparent that the strip or rim would be trimmed or planed to a greater or less extent and the rim or strip would be thinner or thicker at those parts. The cutter-heads E E are made conical to suit the different bevels required on the two sides of the rim. As the shafts or spindles of the heads are parallel, itis evident, in order that the thickness of the rim being dressed shall not vary, that the rim must pass between the cutter-heads at the same point longitudinally, notwithstanding the variations of the curvature of the rim. Since the rim is directed horizontally by guides at the heads B B, it tends to change its position with reference to the cutters E E whenever there is any variation in its curvature, and as it is practically impossible to obtain strips of uniform curvature, the shifting of the strip and the consequent irregularity in the trimming or planing has been of frequent occur;- rence. To overcome this, I cause the cuttingheads E E to change their position simultaneously with any change of curvature of the strip, so that they act uniformly upon the side faces thereof. The rod or guide I bears against the face of the strip at or near the point being dressed and through the action of the spring J moves with any change in the curvature of the strip, and as the shafts F F and their cutting-heads E E are controlled by the rod or guide I they are correspondingly moved with every movement of the rod or guide. The cutting-heads E E are thus controlled in their movements by the strips or rims X and are moved with it, so as to produce a uniform trimmed or planed rim or strip. The unevenness in the curvature of the wooden strip or rim-section is indicated in Fig. i in dotted lines.

WhileI prefer the minor details of construction that have been shown, I do not limit my invention to them, as it is apparent that they may be varied in many ways without departing from it.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows:

1. In a wood-working machine, the combination of a support for a curved piece of wood, feeding devices for feeding said wood, a rotating and movable cutter-head for trimming said wood, and guiding devices controlled by the wood to shift the cutter-head to insure the same portions of the cutter acting upon the wood irrespective of its variations in curvature. 1

2. In a wood-working machine, the combination4 of a pair of vertical cutter-heads, a

IOO

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feed device arranged to feed a strip of wood between the cutters, a pair of horizontal outter-heads having their cutting-edges arranged obliquely to each other and movable longitudinally upon their axes, a movable guide adapted to bear against the faceot the wood first trimmed or planed, and connections between the guide and movable cutter-heads, whereby the latter move with the former.

3. In a Wood-working machine, the combination of two longitudinally-movable rotary cutting-heads, between which the strip of wood to be trimmed is to be fed, and a movable guide-piece connected with said longitudinal movable rotary cutter-heads and held in contact with the strip of Wood, so as to move therewith, `whereby the cutting-heads are moved longitudinally by any variation of the curvature of the strip.

4. The combination of the longitudinallymovable rotary cu tter-heads E E, having their cutting-edges 'arranged to make a tapering pressed rod or guide I, carried by the link H 3 5 andbearing against the wooden strip as it is fed between the cutters E E.

In testimony of which invention I have hereunto set my hand.

RUSSELL HOOPES.

Witn esses J. H. KARR, ISAAC TREON, 

